Wine: Fermented juice of fresh grapes or of other fruit or plant products used as a beverage.Beer: An alcoholic beverage usually made from malted cereal grain (as barley), flavored with hops, and brewed by slow fermentation.Polyphenols: A large class of organic compounds having more than one PHENOL group.Vitis: A plant genus in the family VITACEAE, order Rhamnales, subclass Rosidae. It is a woody vine cultivated worldwide. It is best known for grapes, the edible fruit and used to make WINE and raisins.Alcoholic Beverages: Drinkable liquids containing ETHANOL.Phenols: Benzene derivatives that include one or more hydroxyl groups attached to the ring structure.Fermentation: Anaerobic degradation of GLUCOSE or other organic nutrients to gain energy in the form of ATP. End products vary depending on organisms, substrates, and enzymatic pathways. Common fermentation products include ETHANOL and LACTIC ACID.Port-Wine Stain: A vascular malformation of developmental origin characterized pathologically by ectasia of superficial dermal capillaries, and clinically by persistent macular erythema. In the past, port wine stains have frequently been termed capillary hemangiomas, which they are not; unfortunately this confusing practice persists: HEMANGIOMA, CAPILLARY is neoplastic, a port-wine stain is non-neoplastic. Port-wine stains vary in color from fairly pale pink to deep red or purple and in size from a few millimeters to many centimeters in diameter. The face is the most frequently affected site and they are most often unilateral. (From Rook et al., Textbook of Dermatology, 5th ed, p483)Flavonoids: A group of phenyl benzopyrans named for having structures like FLAVONES.